Wind Turbine Technician Questions with Complete solutions
Betz Limit Correct Answer-A generator can covert no more than 59.3 percent of the available kinetic energy to mechanical energy
1KWH equals how many Watts? Correct Answer-1000W
How long can a 100w lightbulb last with only 1KWH of power Correct Answer-10 hours of run time
Capacity Factor Correct Answer-The ratio of the actual output of a power plant over a period of time and its potential output if it had operated at full nameplate capacity the entire time.
OSHA Define Correct Answer-occupational safety and health administration
Define NIOSH Correct Answer-National Institute for Occupational Safety and Health
Class A Hard Hats Correct Answer-A.K.A General hard hat that can withstand 2,200 volts and impact resistance
Class B Hard Hats Correct Answer-A.K.A Class E for electrical. 22,000 volts protection and impact protection Class C Hard Hats Correct Answer-Conductive; no electrical protection, lightweight and impact.
Bump Caps Correct Answer-Minimal impact protection and NO electrical protection
Metatarsal guards protect.... Correct Answer-The top of the shoe
Non-conductive shoes guard against Correct Answer-electrocution
Cotton Duck Correct Answer-Heavy closely woven fabric for cuts
How is Wind on Earth Created? Correct Answer-Difference in Temperature which creates Pressure
Earths Rotation
Irregularities in the Earths Surface
What does a Wind Turbine Generator do? Correct Answer-Converts kinetic energy from the Wind into Mechanical Energy, then that is converted into electrical energy first law of thermodynamics Correct Answer-Energy can be transferred and transformed, but it cannot be created or destroyed.
What would happen if Betz Limit didn't apply and Generators could extract 100 percent efficiently? Correct Answer-The turbines would not move
Define Power Coefficient Correct Answer-The maximum amount of energy that can be harnessed by a WTG (Wind Turbine Generator)
How do you calculate a Wind Turbines Generators Effieciency? Correct Answer-Actual Energy divided by Total Available Energy
How do fossil fuels form? Correct Answer-from the breakdown of living
organisms that are exposed to heat and pressure over millions of years
What sequence of conversion is required to harness wind and turn it into energy Correct Answer-Kinetic Energy from the Wind is harness by WTG and turned into Rotating Mechanical Energy which rotates the WTG which then converts into electrical energy
How does a wind turbine power itself when not in use Correct Answer-
From its own WTG that powers a on board battery to power it when idle.
What are the two major size categories for Wind Turbines? Correct Answer-Small Scale : Residential and Commercial Use
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